Answer: umm idk
Explanation:
You can ask Siri for help
Explanation:
Bad water quality can impact the ecosystem by pollution. Pollution can lower the oxygen levels. It can also kill plant and animal life in an ecosystem. The living things in the water could die and it could also affect the water we drink. If the water is not clean we could also get sick.
Sunny weather does seem to be broadly correlated with a larger surplus on the international tourism balance, while worse weather is associated with a tourism deficit. This confirms that, as expected, overall there is a net flow of tourists from colder to warmer countries.
they help us see because the retina also contains the nerves that tell the brian what the photoreceptors are seeing
